[WIP] Add SharedMemoryTracker to dump base::SharedMemory usage

media/video/gpu_memory_buffer_video_frame_pool.cc

Index: media/video/gpu_memory_buffer_video_frame_pool.cc
diff --git a/media/video/gpu_memory_buffer_video_frame_pool.cc b/media/video/gpu_memory_buffer_video_frame_pool.cc
index d75f7aaa690b4b5a2442be1d1797cb642a86eb92..b09c48a9090afb08fc2161f52c88ce0a30354178 100644
--- a/media/video/gpu_memory_buffer_video_frame_pool.cc
+++ b/media/video/gpu_memory_buffer_video_frame_pool.cc
@@ -19,6 +19,7 @@
 #include "base/containers/stack_container.h"
 #include "base/location.h"
 #include "base/macros.h"
+#include "base/memory/shared_memory_tracker.h"
 #include "base/strings/stringprintf.h"
 #include "base/trace_event/memory_dump_manager.h"
 #include "base/trace_event/memory_dump_provider.h"
@@ -477,6 +478,11 @@ bool GpuMemoryBufferVideoFramePool::PoolImpl::OnMemoryDump(
                                                   buffer_id);
         pmd->CreateSharedGlobalAllocatorDump(shared_buffer_guid);
         pmd->AddOwnershipEdge(dump->guid(), shared_buffer_guid, kImportance);
+        base::SharedMemoryHandle shared_memory_handle =
+            plane_resource.gpu_memory_buffer->GetHandle().handle;
+        base::SharedMemoryTracker::AddOwnershipEdgeToSharedGlobalDump(
+            pmd, shared_buffer_guid, shared_memory_handle,
+            buffer_size_in_bytes);
       }
     }
   }